<!doctype html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>jQuery UI 放置（Droppable） - 默认功能</title>
    <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
    <script src="//code.jquery.com/jquery-1.9.1.js"></script>
    <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
    <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
    <style>
        #draggable { width: 100px; height: 100px; padding: 0.5em; float: left; margin: 10px 10px 10px 0; }
        #droppable { width: 150px; height: 150px; padding: 0.5em; float: left; margin: 10px; }
    </style>
    <script>
        $(function() {
            $( "#draggable" ).draggable();
            $( "#droppable" ).droppable({
                drop: function( event, ui ) {
                    $( this )
                        .addClass( "ui-state-highlight" )
                        .find( "p" )
                        .html( "Dropped!" );
                }
            });
        });
    </script>
</head>
<body>

<div id="draggable" class="ui-widget-content">
    <p>请把我拖拽到目标处！</p>
</div>

<div id="droppable" class="ui-widget-header">
    <p>请放置在这里！</p>
</div>


</body>
</html>